/// <summary>
/// Use multi-dimensional scaling to layout vertices.
/// A distance matrix can be used to specify the distances between the vertices.
/// Otherwise the distances will be calculated by shortest-path-length.
/// </summary>
/// <remarks>
/// For disconnected graphs, dimension must be 2.
/// </remarks>
/// <param name="dist">The distance matrix to layout the vertices.</param>
/// <param name="dim">How many dimensions should be used.</param>
/// <returns>The coordinates matrix of the aligned vertices.</returns>
public Matrix LayoutWithMds(Matrix dist = null, int dim = 2)
{
var coords = new Matrix(Vertices, dim);
DllImporter.igraph_layout_mds(graph, coords.NativeInstance, dist != null ? dist.NativeInstance : null, dim);
return(coords);
}
